ui/config/JestJsdomEnv.js

// Copyright (C) 2024 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

const JSDOMEnvironment = require('jest-environment-jsdom').default;

module.exports = class JestJsdomEnv extends JSDOMEnvironment {
  constructor(...args) {
    super(...args);

    // vega-lite, which is pulled in by tests, depends on structuredClone.
    // The jsdom envinronment doesn't emulate it yet. So here we create a wrapper
    // around it that fills the gap.
    // See https://github.com/jsdom/jsdom/issues/3363 .
    this.global.structuredClone = structuredClone;

    this.global.TextDecoder = TextDecoder;
    this.global.TextEncoder = TextEncoder;
  }
};